[GRASS-user] Interpolating rainfall data across area from points
lrntct at gmail.com
Mon Oct 15 06:03:32 PDT 2018
In the debate kriging vs deterministic rainfall interpolation, the
following article may be of interest:
Le lun. 24 sept. 2018 à 16:32, Rich Shepard <rshepard at appl-ecosys.com> a
> I want to determine whether GRASS or R is best suited to
> interpolating/extrapolating annual mean precipitation data from 58
> stations (unevenly distributed within the county) across the county. Some
> flavor of kriging would be applied to these data to illustrate a general
> long-term pattern of rainfall.
> Some years ago there was both a static display of a chemical constituent
> in a river reach, a "heat map", (and an automation of temporal changes, if
> correctly recall) and I'm not finding this in the web site galleries.
> While elevation could be included as an explanatory variable using
> regression kriging my purpose is to illustrate county-wide mean annual
> distribution over a 13 year period, not to interpolate values for specific,
> unsampled locations.
> Please provide some thoughts on the work flow to do this within GRASS.
> digging into the gstat docs to get a sense of how to do this within R (and
> have the rgrass7 package working well; it imported the GRASS county
> map which I converted to a SpatialPolygonDataFrame.)
> grass-user mailing list
> grass-user at lists.osgeo.org
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